:root {
    --bg-color: #f5f5f7;
    /* Apple's classic light gray */
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --card-bg: #ffffff;

    --font-stack: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-stack);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    overflow-x: hidden;
}

/* Subtle gradient mesh for that "Premium Product" feel */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 30%, rgba(255, 255, 255, 0.8) 0%, rgba(245, 245, 247, 0) 50%);
    pointer-events: none;
    z-index: -1;
}

.wrapper {
    width: 100%;
    max-width: 440px;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transform: scale(0.96);
    animation: appEntrance 1.4s var(--ease-out-expo) forwards;
}

@keyframes appEntrance {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: var(--target-opacity, 1);
        transform: translateY(0);
    }
}

@keyframes vibrate-passive {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    10% {
        transform: translate(-1px, 0) rotate(-1deg);
    }

    15% {
        transform: translate(1px, 0) rotate(1deg);
    }

    20% {
        transform: translate(-1px, 0) rotate(0deg);
    }

    25% {
        transform: translate(1px, 0) rotate(0deg);
    }

    30% {
        transform: translate(0, 0) rotate(0deg);
    }
}

.logo-container {
    position: relative;
    margin-bottom: 0.5rem;
    width: 160px;
    /* Slightly larger */
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    width: 100%;
    height: auto;
    display: block;
    /* Magic trick: makes the white background of the image transparent 
       so it blends with the grey page background */
    mix-blend-mode: multiply;
}

.title {
    display: none;
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: 2rem;
}

/* Button & Card Styles */

/* Main CTA - WhatsApp */
.main-cta-container {
    width: 100%;
    margin-bottom: 1.2rem;
    position: relative;
    z-index: 10;
}

.whatsapp-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 1.5rem;
    background: #000000;
    border-radius: 20px;
    color: #fff;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.3);
    /* Deeper shadow */
    transition: transform 0.2s var(--ease-out-expo), box-shadow 0.2s;
}

.btn-primary.is-main {
    animation: vibrate-passive 3s infinite ease-in-out;
}

.btn-primary:active {
    transform: scale(0.97);
    animation: none;
}

.btn-primary i {
    font-size: 1.5rem;
    color: #25D366;
}

/* Secondary Actions */
.secondary-actions {
    width: 100%;
    display: flex;
    flex-direction: column;
    margin-bottom: 2.5rem;
}

.btn-secondary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.3rem 1.6rem;
    /* Clean White Card against Grey Bg */
    background: var(--card-bg);
    border-radius: 18px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 500;

    /* Apple-style card shadow */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);

    transition: all 0.2s var(--ease-out-expo);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-secondary i {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Social Proof Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
    margin-bottom: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.stat-card {
    /* White cards for grid too */
    background: var(--card-bg);
    border-radius: 16px;
    padding: 1rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.stat-icon {
    font-size: 1.2rem;
    color: #1d1d1f;
}

.stat-card:first-child .stat-icon {
    color: #34c759;
}

.stat-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Reveal Delays */
.reveal-item {
    opacity: 0;
    animation: slideUpFade 1s var(--ease-out-expo) forwards;
}

.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.3s;
}

.delay-3 {
    animation-delay: 0.45s;
}

.delay-4 {
    animation-delay: 0.6s;
}

.delay-5 {
    animation-delay: 0.7s;
}

/* Footer */
.footer {
    opacity: 0.4;
    transition: opacity 0.3s ease;
}

.footer:hover {
    opacity: 1;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.2rem;
}